/* ==========================================================================
   SMET Ingenieros SAC — Propuesta web corporativa
   HTML5 · CSS3 · jQuery. Sin build step.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root{
  --navy-950:#071B33;
  --navy-900:#0A2540;
  --navy-850:#0C2F53;
  --navy-800:#0E3A6E;
  --blue-700:#12518F;
  --blue-600:#1C64B0;
  --blue-500:#2E86D9;
  --blue-400:#5AA7E8;
  --accent:#F5921E;
  --accent-2:#E8492B;

  --ink:#0C1B2A;
  --slate-700:#33475B;
  --slate-500:#5C6E7E;
  --slate-400:#8493A0;
  --line:#DCE3EA;
  --line-2:#EAEFF4;
  --paper:#F3F6F9;
  --paper-2:#E9EEF3;
  --white:#FFFFFF;

  --font-display:'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body:'Inter', 'Segoe UI', system-ui, sans-serif;

  --shell:1240px;
  --gutter:clamp(20px, 5vw, 64px);
  --radius:4px;
  --radius-lg:8px;

  --ease:cubic-bezier(.16,.68,.32,1);
  --dur:.55s;

  --header-h:84px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.72;
  color:var(--slate-700);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);line-height:1.08;font-weight:600;letter-spacing:-.02em}
::selection{background:var(--blue-500);color:#fff}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(72px, 11vw, 148px)}
section[id]{scroll-margin-top:calc(var(--header-h) + 6px)}

.skip-link{
  position:fixed;left:12px;top:-60px;z-index:1200;background:var(--navy-900);color:#fff;
  padding:10px 16px;border-radius:var(--radius);transition:top .2s
}
.skip-link:focus{top:12px}

/* ---------- Scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:1100;
  background:linear-gradient(90deg,var(--blue-500),var(--accent));
  transition:width .1s linear
}

/* ---------- Typography helpers ---------- */
.h-section{
  font-size:clamp(1.9rem, 1.1rem + 2.6vw, 3.15rem);
  letter-spacing:-.03em;
  color:var(--ink);
  max-width:16ch;
  margin-bottom:1.2rem;
}
.h-section--light{color:#fff}
.about__text .h-section,.services__aside .h-section{max-width:20ch}
.services__aside .h-section{font-size:clamp(1.65rem,1.2rem + 1vw,2.15rem);max-width:16ch}
.clients__head .h-section{margin-bottom:0}
.about__text p + p,.quality__text p + p,.services__aside-inner p + p,
.contact__info p + p,.mv__card p + p{margin-top:1.05em}

.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-family:var(--font-display);
  font-size:.82rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue-600);
  margin-bottom:24px;
}
.eyebrow--light{color:var(--blue-400)}
.eyebrow .num{
  font-size:.78rem;letter-spacing:0;
  color:var(--slate-400);
  padding:3px 8px;border:1px solid var(--line);border-radius:3px;
}
.eyebrow--light .num{color:rgba(255,255,255,.6);border-color:rgba(255,255,255,.2)}

.lead{font-size:1.16rem;color:var(--slate-700);font-weight:500}
.txt-accent{color:var(--blue-600)}
.section p + p{margin-top:1.1em}

/* ---------- Buttons ---------- */
.btn{
  --btn-bg:var(--blue-600);--btn-fg:#fff;
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--font-display);font-weight:600;font-size:.95rem;letter-spacing:.01em;
  padding:15px 26px;border-radius:var(--radius);
  background:var(--btn-bg);color:var(--btn-fg);
  transition:transform .25s var(--ease), background .25s, box-shadow .25s, color .25s;
  will-change:transform;
}
.btn i{font-size:.85em;transition:transform .25s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:hover i{transform:translateX(3px)}
.btn:focus-visible{outline:3px solid var(--blue-400);outline-offset:3px}
.btn--solid{background:var(--blue-600);color:#fff;box-shadow:0 10px 30px -12px rgba(28,100,176,.7)}
.btn--solid:hover{background:var(--blue-700)}
.btn--ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.5)}
.btn--ghost:hover{box-shadow:inset 0 0 0 1.5px #fff;background:rgba(255,255,255,.08)}
.btn--sm{padding:11px 20px;font-size:.86rem}
.btn--lg{padding:19px 40px;font-size:1.05rem}
.btn--block{width:100%;justify-content:center}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  transition:background .35s var(--ease), box-shadow .35s, height .35s;
  height:var(--header-h);
}
.header__inner{display:flex;align-items:center;gap:32px;height:100%}
.brand{flex-shrink:0;display:flex;align-items:center}
.brand__logo{height:38px;width:auto;display:block;transition:height .35s}
/* transparent state over hero → logo sobre placa blanca (lockup) */
.site-header:not(.is-solid) .brand{
  background:#fff;padding:9px 15px;border-radius:var(--radius);
  box-shadow:0 8px 30px -12px rgba(0,0,0,.35);
}
.site-header.is-solid .brand{padding:0}

.nav-desktop{margin-left:auto}
.nav-desktop ul{display:flex;gap:6px}
.nav-desktop a{
  position:relative;
  font-family:var(--font-display);font-weight:500;font-size:.92rem;
  padding:10px 14px;border-radius:var(--radius);
  color:rgba(255,255,255,.9);
  transition:color .25s, background .25s;
}
.nav-desktop a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-desktop a:hover::after,.nav-desktop a.is-active::after{transform:scaleX(1)}
.nav-desktop a.is-active{color:#fff}

.site-header.is-solid{
  height:70px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line), 0 10px 30px -20px rgba(10,37,64,.4);
}
.site-header.is-solid .nav-desktop a{color:var(--slate-700)}
.site-header.is-solid .nav-desktop a:hover,
.site-header.is-solid .nav-desktop a.is-active{color:var(--navy-900)}
.site-header.is-solid .brand__logo{height:34px}
.header__cta{flex-shrink:0}
.site-header:not(.is-solid) .header__cta{
  background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.4)
}
.site-header:not(.is-solid) .header__cta:hover{background:rgba(255,255,255,.2)}

/* hamburger */
.hamburger{display:none;width:44px;height:44px;position:relative;flex-shrink:0}
.hamburger span{
  position:absolute;left:9px;right:9px;height:2px;background:#fff;border-radius:2px;
  transition:transform .3s var(--ease), opacity .2s, background .3s;
}
.hamburger span:nth-child(1){top:15px}
.hamburger span:nth-child(2){top:21px}
.hamburger span:nth-child(3){top:27px}
.site-header.is-solid .hamburger span{background:var(--navy-900)}
body.nav-open .hamburger span{background:#fff}
body.nav-open .hamburger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .hamburger span:nth-child(2){opacity:0}
body.nav-open .hamburger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Mobile nav ---------- */
.mobile-nav{
  position:fixed;top:0;right:0;bottom:0;width:min(420px,88vw);z-index:1050;
  background:var(--navy-900);
  padding:26px 30px 30px;
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .45s var(--ease);
  overflow-y:auto;
}
body.nav-open .mobile-nav{transform:translateX(0)}
.mobile-nav__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}
.mobile-nav__logo{height:26px;width:auto;display:block}
/* logo sobre placa blanca en fondos oscuros */
.logo--light{background:#fff;padding:8px 13px;border-radius:var(--radius)}
.mobile-nav__close{width:42px;height:42px;font-size:1.3rem;color:#fff;border-radius:var(--radius);border:1px solid rgba(255,255,255,.15)}
.mobile-nav nav{flex:1}
.mobile-nav nav ul{display:flex;flex-direction:column}
.mobile-nav nav a{
  display:flex;align-items:baseline;gap:16px;
  font-family:var(--font-display);font-size:1.5rem;font-weight:500;color:#fff;
  padding:15px 0;border-bottom:1px solid rgba(255,255,255,.09);
  transition:color .2s, padding-left .25s var(--ease);
}
.mobile-nav nav a:hover,.mobile-nav nav a.is-active{color:var(--blue-400);padding-left:8px}
.mn-idx{font-size:.8rem;color:var(--slate-400);letter-spacing:.1em}
.mobile-nav__foot{display:flex;flex-direction:column;gap:12px;margin-top:26px;font-size:.95rem;color:rgba(255,255,255,.75)}
.mobile-nav__foot a{display:flex;align-items:center;gap:10px}
.mobile-nav__foot i{color:var(--blue-400);width:16px}
.nav-backdrop{
  position:fixed;inset:0;z-index:1040;background:rgba(7,27,51,.55);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .4s, visibility .4s;
}
body.nav-open .nav-backdrop{opacity:1;visibility:visible}

/* ==========================================================================
   01 · HERO
   ========================================================================== */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding-top:var(--header-h);
  color:#fff;overflow:hidden;isolation:isolate;
}
.hero__media{position:absolute;inset:0;z-index:-3}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:center 60%;transform:scale(1.06);will-change:transform}
.hero__overlay{
  position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(180deg, rgba(7,27,51,.72) 0%, rgba(7,27,51,.42) 42%, rgba(7,27,51,.85) 100%),
    linear-gradient(90deg, rgba(10,37,64,.9) 0%, rgba(10,37,64,.15) 65%);
}
.hero__grid{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 80% at 15% 40%, #000 0%, transparent 70%);
          mask-image:radial-gradient(120% 80% at 15% 40%, #000 0%, transparent 70%);
}
.hero__inner{position:relative;z-index:1;padding-block:40px}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--font-display);font-size:.82rem;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:rgba(255,255,255,.82);
  margin-bottom:28px;
}
.hero__eyebrow .tick{width:34px;height:2px;background:var(--accent);display:inline-block}
.hero__title{
  font-size:clamp(2.5rem, 1rem + 7vw, 5.6rem);
  font-weight:600;letter-spacing:-.035em;line-height:1.02;
  text-transform:uppercase;color:#fff;
  text-shadow:0 4px 40px rgba(0,0,0,.35);
}
.hero__title .txt-accent{color:var(--blue-400)}
.hero__title .outline{
  color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.85);
}
.hero__lead{
  margin-top:28px;max-width:52ch;
  font-size:clamp(1.05rem,1rem + .4vw,1.3rem);color:rgba(255,255,255,.85);font-weight:400;
}
.hero__actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:16px}

.hero__foot{
  position:relative;z-index:1;
  border-top:1px solid rgba(255,255,255,.14);
  background:linear-gradient(180deg,transparent, rgba(7,27,51,.55));
  margin-top:auto;
}
.hero__foot-inner{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  padding-block:22px;
}
.hero__foot-label{
  font-family:var(--font-display);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(255,255,255,.55);max-width:16ch;
}
.norm-strip{display:flex;flex-wrap:wrap;gap:10px 12px;margin-left:auto}
.norm-strip li{
  font-family:var(--font-display);font-weight:600;font-size:.92rem;letter-spacing:.14em;
  color:#fff;padding:8px 16px;
  border:1px solid rgba(255,255,255,.22);border-radius:3px;
  background:rgba(255,255,255,.04);
}
.hero__scroll{
  position:absolute;right:var(--gutter);bottom:104px;z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-family:var(--font-display);font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;
  color:rgba(255,255,255,.6);
}
.hero__scroll i{animation:bob 1.8s var(--ease) infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(7px)}}
@media (max-width:900px){.hero__scroll{display:none}}

/* ==========================================================================
   02 · QUIÉNES SOMOS
   ========================================================================== */
.about{background:var(--white)}
.about__grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,7vw,110px);
  align-items:center;
}
.about__media{position:relative}
.about__img{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:0 40px 80px -40px rgba(10,37,64,.5);
}
.about__img::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(200deg, rgba(28,100,176,.12), transparent 55%);
}
.about__img img{width:100%;aspect-ratio:4/3.4;object-fit:cover}
.about__badge{
  position:absolute;left:-28px;bottom:-30px;z-index:2;
  background:var(--navy-900);color:#fff;
  padding:22px 26px;border-radius:var(--radius-lg);
  box-shadow:0 30px 60px -25px rgba(10,37,64,.7);
  border-left:3px solid var(--accent);
}
.about__badge-k{
  display:block;font-family:var(--font-display);font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--blue-400);margin-bottom:8px;
}
.about__badge-v{font-family:var(--font-display);font-weight:600;font-size:1.02rem;line-height:1.5}
.about__corner{position:absolute;width:70px;height:70px;pointer-events:none}
.about__corner--tr{top:-18px;right:-18px;border-top:2px solid var(--blue-500);border-right:2px solid var(--blue-500)}

/* Normativas band */
.norm-band{margin-top:clamp(60px,9vw,120px);padding-top:48px;border-top:1px solid var(--line)}
.norm-band__title{
  font-family:var(--font-display);font-size:.8rem;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--slate-400);margin-bottom:26px;
}
.norm-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.norm-list li{background:var(--white);padding:24px 26px;transition:background .3s}
.norm-list li:hover{background:var(--paper)}
.norm-list__k{
  display:block;font-family:var(--font-display);font-weight:700;font-size:1.5rem;
  color:var(--navy-900);letter-spacing:.02em;margin-bottom:4px;
}
.norm-list__v{font-size:.92rem;color:var(--slate-500)}

/* ==========================================================================
   03 · MISIÓN / VISIÓN
   ========================================================================== */
.mv{position:relative;color:#fff;padding-block:clamp(80px,12vw,160px);overflow:hidden;isolation:isolate}
.mv__bg{position:absolute;inset:0;z-index:-2}
.mv__bg img{width:100%;height:100%;object-fit:cover}
.mv::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg, var(--navy-950) 20%, rgba(12,47,83,.92) 70%, rgba(28,100,176,.55));
}
.mv__grid{position:relative}
.mv__cards{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:14px}
.mv__card{
  position:relative;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  padding:clamp(30px,4vw,52px);
  overflow:hidden;
}
.mv__card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .5s var(--ease);
}
.mv__card.is-in::after{transform:scaleY(1)}
.mv__card-head{display:flex;align-items:center;gap:22px;margin-bottom:22px;position:relative;z-index:1}
.mv__ghost{
  position:absolute;right:8px;top:-24px;z-index:0;pointer-events:none;
  font-family:var(--font-display);font-weight:700;font-size:clamp(7rem,15vw,11rem);
  line-height:.8;color:transparent;-webkit-text-stroke:2px rgba(90,167,232,.28);
}
.mv__card h2{font-size:clamp(1.6rem,1rem + 1.8vw,2.3rem);color:#fff}
.mv__card p{color:rgba(255,255,255,.82);font-size:1.06rem;position:relative;z-index:1}
.mv__card-head h2::before{
  content:"";display:inline-block;width:34px;height:3px;background:var(--accent);
  margin-right:16px;vertical-align:middle;
}

/* ==========================================================================
   04 · SERVICIOS
   ========================================================================== */
.services{background:var(--paper)}
.services__grid{display:grid;grid-template-columns:minmax(300px,.9fr) 1.6fr;gap:clamp(36px,6vw,84px);align-items:start}
.services__aside-inner{position:sticky;top:calc(var(--header-h) + 24px)}
.services__aside .btn{margin-top:26px}
.services__preview{
  margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:4/3;border:1px solid var(--line);
  box-shadow:0 30px 60px -35px rgba(10,37,64,.5);
  display:none;
}
.services__preview img{width:100%;height:100%;object-fit:cover;transition:opacity .35s}
.services__hint{
  display:none;margin-top:16px;
  font-family:var(--font-display);font-size:.82rem;letter-spacing:.06em;color:var(--slate-500);
}
.services__hint #svcHintNum{color:var(--blue-600);font-weight:600}
.services__hint-sep{color:var(--slate-400);margin:0 10px 0 4px}
.services__hint #svcHintName{display:block;margin-top:4px;color:var(--ink);font-weight:500;font-size:.95rem}
@media (min-width:1081px){.services__preview,.services__hint{display:block}}

.svc-list{border-top:1px solid var(--line)}
.svc-item{
  position:relative;display:flex;align-items:flex-start;gap:clamp(16px,3vw,40px);
  padding:clamp(24px,3.4vw,40px) 8px;
  border-bottom:1px solid var(--line);
  cursor:default;transition:padding-left .35s var(--ease), background .35s;
}
.svc-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;background:var(--blue-600);
  transition:width .35s var(--ease);
}
.svc-item:hover{background:rgba(255,255,255,.6);padding-left:22px}
.svc-item:hover::before{width:3px}
.svc-item__num{
  font-family:var(--font-display);font-weight:600;font-size:1rem;color:var(--slate-400);
  padding-top:6px;transition:color .3s;
}
.svc-item:hover .svc-item__num{color:var(--blue-600)}
.svc-item__body h3{
  font-size:clamp(1.15rem,1rem + .9vw,1.6rem);color:var(--ink);margin-bottom:8px;letter-spacing:-.02em;
}
.svc-item__body p{font-size:1rem;color:var(--slate-500);max-width:60ch}
.svc-item__arrow{
  margin-left:auto;align-self:center;color:var(--blue-600);font-size:1rem;
  opacity:0;transform:translateX(-8px);transition:opacity .3s, transform .3s var(--ease);
}
.svc-item:hover .svc-item__arrow{opacity:1;transform:translateX(0)}

/* ==========================================================================
   05 · PROYECTOS
   ========================================================================== */
.projects{background:var(--navy-950);color:#fff;padding-block:clamp(72px,11vw,150px);overflow:hidden}
.projects__head{
  display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:end;
  margin-bottom:clamp(36px,5vw,64px);
}
.projects__intro{color:rgba(255,255,255,.7);font-size:1.05rem;max-width:46ch}
.projects__grid{
  display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:16px;
}
.proj{
  position:relative;overflow:hidden;border-radius:var(--radius);
  grid-column:span 2;grid-row:span 1;
}
.proj--xl{grid-column:span 2;grid-row:span 2}
.proj--tall{grid-column:span 2;grid-row:span 2}
.proj--wide{grid-column:span 4;grid-row:span 1}
.proj img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .8s var(--ease), filter .6s;
  filter:saturate(.92) brightness(.82);
}
.proj::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(7,27,51,.9) 0%, rgba(7,27,51,.1) 55%, transparent 100%);
  opacity:.85;transition:opacity .5s;
}
.proj:hover img{transform:scale(1.07);filter:saturate(1.05) brightness(.95)}
.proj:hover::after{opacity:1}
.proj figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:22px 24px;
  transform:translateY(6px);transition:transform .45s var(--ease);
}
.proj:hover figcaption{transform:translateY(0)}
.proj__tag{
  display:inline-block;font-family:var(--font-display);font-size:.66rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;
}
.proj__name{display:block;font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:#fff;line-height:1.3}

/* ==========================================================================
   06 · CALIDAD Y SEGURIDAD
   ========================================================================== */
.quality{position:relative;color:#fff;padding-block:clamp(80px,12vw,168px);overflow:hidden;isolation:isolate}
.quality__bg{position:absolute;inset:0;z-index:-2}
.quality__bg img{width:100%;height:100%;object-fit:cover}
.quality::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg, rgba(7,27,51,.96) 22%, rgba(10,37,64,.82) 58%, rgba(18,81,143,.5));
}
.quality__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(40px,6vw,90px);align-items:center}
.quality__text p{color:rgba(255,255,255,.8);font-size:1.05rem}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);overflow:hidden}
.pillars li{
  background:rgba(9,30,55,.72);backdrop-filter:blur(4px);
  padding:30px 26px;display:flex;flex-direction:column;gap:8px;
  transition:background .3s;
}
.pillars li:hover{background:rgba(28,100,176,.35)}
.pillars i{font-size:1.5rem;color:var(--accent);margin-bottom:8px}
.pillars__k{font-family:var(--font-display);font-weight:600;font-size:1.15rem;color:#fff}
.pillars__v{font-size:.92rem;color:rgba(255,255,255,.7);line-height:1.5}

/* ==========================================================================
   07 · CLIENTES
   ========================================================================== */
.clients{background:var(--white)}
.clients__head{text-align:center;margin-bottom:clamp(38px,5vw,64px)}
.clients__head .eyebrow{justify-content:center}
.clients__head .h-section{max-width:none;margin-inline:auto}
.clients__grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);
}
.clients__grid li{
  background:var(--white);display:grid;place-items:center;
  padding:40px 32px;min-height:150px;transition:background .3s;
}
.clients__grid li:hover{background:var(--paper)}
.clients__grid img{
  max-height:60px;width:auto;object-fit:contain;
  filter:grayscale(1) opacity(.8) contrast(1.05);transition:filter .35s, transform .35s var(--ease);
}
.clients__grid li:hover img{filter:grayscale(0) opacity(1);transform:scale(1.05)}

/* ==========================================================================
   08 · CTA
   ========================================================================== */
.cta{position:relative;background:var(--navy-900);color:#fff;overflow:hidden;isolation:isolate}
.cta__bg{position:absolute;inset:0;z-index:-3}
.cta__bg img{
  width:100%;height:100%;object-fit:cover;object-position:center 28%;
  opacity:.20;filter:grayscale(.25) contrast(1.05);
}
.cta::after{
  content:"";position:absolute;inset:0;z-index:-2;
  background:linear-gradient(90deg, var(--navy-900) 12%, rgba(10,37,64,.72) 55%, rgba(10,37,64,.45));
}
.cta::before{
  content:"";position:absolute;right:-10%;top:-40%;width:60%;height:180%;z-index:-1;
  background:radial-gradient(closest-side, rgba(28,100,176,.5), transparent 70%);
}
.cta__grid{
  position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(90deg,transparent, #000 60%);
          mask-image:linear-gradient(90deg,transparent, #000 60%);
}
.cta__inner{padding-block:clamp(72px,11vw,150px);text-align:left}
.cta__title{
  font-size:clamp(2.2rem,1rem + 6vw,4.6rem);text-transform:uppercase;letter-spacing:-.035em;
  color:#fff;margin:14px 0 20px;
}
.cta__lead{color:rgba(255,255,255,.75);font-size:1.15rem;max-width:44ch;margin-bottom:36px}

/* ==========================================================================
   09 · CONTACTO
   ========================================================================== */
.contact{background:var(--paper)}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,88px)}
.contact__info p{color:var(--slate-600)}
.contact__list{margin-top:32px;display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.contact__list li{
  background:var(--white);padding:20px 24px;
  display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;
  column-gap:16px;align-items:center;transition:background .25s;
}
.contact__list li:hover{background:var(--paper)}
.contact__ico{
  grid-row:1/3;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;background:var(--navy-900);color:#fff;font-size:1rem;
}
.contact__k{font-family:var(--font-display);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--slate-400)}
.contact__list a{font-weight:600;color:var(--navy-900);font-size:1.05rem;word-break:break-word}
.contact__list a:hover{color:var(--blue-600)}

.contact__form{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(26px,4vw,44px);
  box-shadow:0 40px 80px -50px rgba(10,37,64,.45);
  align-self:start;
}
.field{margin-bottom:20px}
.field label{
  display:block;font-family:var(--font-display);font-size:.78rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--slate-500);margin-bottom:9px;
}
.field input,.field textarea{
  width:100%;padding:14px 16px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);color:var(--ink);
  transition:border-color .25s, background .25s, box-shadow .25s;
  resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:var(--slate-400)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--blue-500);background:#fff;
  box-shadow:0 0 0 4px rgba(46,134,217,.14);
}
.field.has-error input,.field.has-error textarea{border-color:var(--accent-2);box-shadow:0 0 0 4px rgba(232,73,43,.12)}
.form-note{margin-top:16px;font-size:.92rem;min-height:1.4em;text-align:center}
.form-note.ok{color:#1a7f4b}
.form-note.err{color:var(--accent-2)}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:var(--navy-950);color:rgba(255,255,255,.62);padding-top:clamp(56px,8vw,90px)}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:clamp(32px,5vw,72px);
  padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer__logo{height:42px;width:auto;display:inline-block;margin-bottom:24px}
.footer__brand p{max-width:38ch;font-size:.98rem;line-height:1.7}
.site-footer h3{
  font-family:var(--font-display);font-size:.76rem;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:18px;
}
.footer__nav ul,.footer__contact ul{display:flex;flex-direction:column;gap:11px}
.footer__nav a,.footer__contact a{font-size:.98rem;transition:color .2s;color:rgba(255,255,255,.72)}
.footer__nav a:hover,.footer__contact a:hover{color:#fff}
.footer__bar{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-block:26px;font-size:.86rem;color:rgba(255,255,255,.45);
}
.footer__credit strong{color:rgba(255,255,255,.8);font-weight:600}

/* ---------- To-top ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:900;
  width:48px;height:48px;border-radius:50%;
  background:var(--blue-600);color:#fff;display:grid;place-items:center;font-size:1rem;
  box-shadow:0 14px 34px -12px rgba(28,100,176,.8);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .35s, visibility .35s, transform .35s var(--ease), background .25s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--blue-700);transform:translateY(-3px)}

/* ==========================================================================
   Reveal animations
   ========================================================================== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero__media img{transform:none}
  .hero__scroll i{animation:none}
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1180px){
  .projects__grid{grid-auto-rows:180px}
}

/* ---- Tablet landscape / small laptop ---- */
@media (max-width:1080px){
  .nav-desktop{display:none}
  .header__cta{display:none}
  .hamburger{display:block;margin-left:auto}
  .services__grid{grid-template-columns:1fr;gap:40px}
  .services__aside-inner{position:static}
  .services__preview{display:none}
  .services__aside .h-section{max-width:24ch}
}

/* ---- Tablet portrait ---- */
@media (max-width:980px){
  :root{--header-h:74px}
  .about__grid{grid-template-columns:1fr;gap:52px}
  .about__media{max-width:520px}
  .about__badge{left:0}
  .norm-list{grid-template-columns:1fr 1fr}
  .mv__cards{grid-template-columns:1fr;gap:20px}
  .quality__inner{grid-template-columns:1fr;gap:40px}
  .projects__head{grid-template-columns:1fr;gap:18px}
  .projects__grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:190px}
  .proj{grid-column:span 1;grid-row:span 1}
  .proj--xl,.proj--tall,.proj--wide{grid-column:span 2}
  .proj--xl,.proj--tall{grid-row:span 2}
  .contact__grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:40px}
  .footer__brand{grid-column:1/-1}
}

/* ---- Large phone / phablet ---- */
@media (max-width:768px){
  body{font-size:16px}
  .section{padding-block:clamp(56px, 13vw, 88px)}
  .mv,.projects,.quality{padding-block:clamp(60px, 14vw, 96px)}
  .h-section{font-size:clamp(1.75rem, 1.2rem + 3.4vw, 2.4rem)}

  .hero{min-height:100svh}
  .hero__inner{padding-block:24px}
  .hero__title{font-size:clamp(1.85rem, 0.85rem + 6.1vw, 2.9rem);letter-spacing:-.025em;line-height:1.05}
  .hero__title .outline{-webkit-text-stroke:1px rgba(255,255,255,.82)}
  .hero__lead{margin-top:22px;font-size:1.02rem}
  .hero__actions{margin-top:28px;width:100%;gap:12px}
  .hero__foot-inner{flex-direction:column;align-items:flex-start;gap:12px;padding-block:18px}
  .norm-strip{margin-left:0;gap:8px}
  .norm-strip li{padding:6px 11px;font-size:.78rem;letter-spacing:.1em}

  .btn{width:100%;justify-content:center;padding:15px 22px}
  .btn--sm{width:auto}
  .services__aside .btn--sm{width:100%}

  .about__badge{position:static;margin-top:18px;padding:18px 20px}
  .about__img img{aspect-ratio:4/3}

  .norm-band{margin-top:clamp(44px,10vw,72px);padding-top:36px}
  .norm-list{grid-template-columns:1fr}
  .norm-list li{padding:20px 20px}
  .norm-list__k{font-size:1.3rem}
  .about__corner{display:none}

  .mv__card{padding:28px 22px}
  .mv__ghost{font-size:8rem;right:-6px;top:-16px;-webkit-text-stroke-width:1.5px}

  .svc-item{flex-wrap:nowrap;gap:14px;padding:22px 4px}
  .svc-item:hover{padding-left:12px}
  .svc-item__num{font-size:.85rem;padding-top:4px}
  .svc-item__body h3{font-size:1.12rem}
  .svc-item__body p{font-size:.95rem}
  .svc-item__arrow{display:none}

  .projects__grid{grid-template-columns:1fr;grid-auto-rows:auto;gap:12px}
  .proj,.proj--xl,.proj--tall,.proj--wide{grid-column:1;grid-row:auto;aspect-ratio:16/10}
  .proj--xl{aspect-ratio:4/4.4}
  .proj::after{opacity:1}
  .proj figcaption{transform:none;padding:18px 20px}
  .proj__name{font-size:1rem}

  .quality__text p,.about__text p,.contact__info p{font-size:1rem}
  .pillars{grid-template-columns:1fr}
  .pillars li{padding:24px 22px}

  .clients__head{margin-bottom:36px}
  .clients__grid{grid-template-columns:1fr 1fr}
  .clients__grid li{min-height:108px;padding:26px 18px}
  .clients__grid img{max-height:52px}

  .cta__inner{padding-block:clamp(60px,15vw,96px)}
  .cta__title{font-size:clamp(2rem, 1rem + 8vw, 3.2rem)}
  .cta__lead{font-size:1.05rem;margin-bottom:28px}

  .contact__list{margin-top:26px}
  .contact__list li{padding:18px 18px}
  .contact__form{padding:24px 20px}

  .footer__grid{grid-template-columns:1fr;gap:34px;padding-bottom:44px}
  .footer__nav a,.footer__contact a{display:inline-block;padding:5px 0}
  .footer__bar{flex-direction:column;gap:6px;text-align:center;justify-content:center}

  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}

/* ---- Standard phone ---- */
@media (max-width:520px){
  .mobile-nav{width:100%}
  .cta__title br{display:none}
  .hero__eyebrow{font-size:.72rem;letter-spacing:.16em}
  .hero__title{letter-spacing:-.02em}
  .h-section{font-size:clamp(1.65rem, 1.1rem + 4vw, 2.05rem)}
  .eyebrow{font-size:.74rem;letter-spacing:.16em;gap:10px}
  .mv__card-head h2::before{width:24px;margin-right:12px}
  .clients__grid img{max-height:46px}
}

/* ---- Small phone ---- */
@media (max-width:380px){
  .shell{padding-inline:16px}
  .hero__title{font-size:2rem;line-height:1.06}
  .hero__lead{font-size:.98rem}
  .cta__title{font-size:1.85rem}
  .mv__ghost{font-size:6.5rem}
  .clients__grid{grid-template-columns:1fr}
  .clients__grid li{min-height:96px}
  .contact__list li{grid-template-columns:1fr}
  .contact__ico{grid-row:auto;margin-bottom:10px}
  .svc-item__body h3{font-size:1.05rem}
}